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Auto & TiresHomeElectronicsHome ImprovementHealth and MedicineBeautyCell PhonesHousehold EssentialsVideo GamesParty & OccasionsJewelryBooksMovies & TV ShowsSports & OutdoorsToysPhoto CenterBabyPatio & GardenClothingPetsFoodShop by SellerShop with PurposeArts Crafts & SewingMusical InstrumentsIndustrial & ScientificCharacter ShopShop by BrandShop by Video GameServicesPersonalized GiftsPersonal CareOffice SuppliesSubscriptionsCollectiblesPremium BeautyFeatureShop by Movie
Hard Sensor(18)
Uses item details. Price when purchased online
ADT Blu Door and Window Sensor 4-Pack, Wireless Alarm Sensors with Tamper Alerts & Convenience Mode, Plan Required. $59.99
Sponsored
$5999
current price $59.99ADT Blu Door and Window Sensor 4-Pack, Wireless Alarm Sensors with Tamper Alerts & Convenience Mode, Plan Required.
Shelly Flood Gen4 Wi-Fi, Zigbee & Matter Smart Flood Sensor with Bluetooth, Leak Detection Cable, Alexa, Google Home, Apple HomeKit $31.99
Sponsored
$3199
current price $31.99Shelly Flood Gen4 Wi-Fi, Zigbee & Matter Smart Flood Sensor with Bluetooth, Leak Detection Cable, Alexa, Google Home, Apple HomeKit
4.4 out of 5 stars
PIR Sensor Dual Passive Infrared Motion Detector Hard Wired Request to Exit for Residential or Commercial Burglar Alarm Systems $19.99
$1999
current price $19.99PIR Sensor Dual Passive Infrared Motion Detector Hard Wired Request to Exit for Residential or Commercial Burglar Alarm Systems
Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor - Hard-Wired Motion Sensor, 120V LED Compatible, Automatic Sensing Solution for Indoor Use at Max Height 10ft, Ideal for Closets and Pantries $14.99
$1499
current price $14.99Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor - Hard-Wired Motion Sensor, 120V LED Compatible, Automatic Sensing Solution for Indoor Use at Max Height 10ft, Ideal for Closets and Pantries
Best seller, 2Pcs Hard-Wired Post Eye Light Control Sensor, 100-277V Auto on/Off, Outdoor Waterproof Dusk to Dawn Photocell $10.69
Best seller
$1069
current price $10.692Pcs Hard-Wired Post Eye Light Control Sensor, 100-277V Auto on/Off, Outdoor Waterproof Dusk to Dawn Photocell
Wall Mount Sensor, Occupancy, Vacancy, Hard Wired, White, 1,200 sq ft, Fluorescent, LED $82.00 $82.00/1
$8200
current price $82.00$82.00/1
Wall Mount Sensor, Occupancy, Vacancy, Hard Wired, White, 1,200 sq ft, Fluorescent, LED
1 out of 5 stars
Wall Mount Sensor, Occupancy, Vacancy, Hard Wired, Ivory, 1,200 sq ft, Fluorescent, LED $88.59 $88.59/1
$8859
current price $88.59$88.59/1
Wall Mount Sensor, Occupancy, Vacancy, Hard Wired, Ivory, 1,200 sq ft, Fluorescent, LED
5 out of 5 stars
Fixture Mount Hard Wired Occupancy Sensor, 2827 sq. ft. Passive Infrared, White $171.17
$17117
current price $171.17Fixture Mount Hard Wired Occupancy Sensor, 2827 sq. ft. Passive Infrared, White
Deal4GO Temperature Hard Drive HDD & DVD Thermal Sensor cable 076-1369 076-1370 820-2378-02 replacement for MacMini A1347 2010 2011 2012 $4.99
$499
current price $4.99Deal4GO Temperature Hard Drive HDD & DVD Thermal Sensor cable 076-1369 076-1370 820-2378-02 replacement for MacMini A1347 2010 2011 2012
Maxxima Motion Detectors 360 Degree PIR Occupancy Sensor white Hard-Wired Motion LED Compatible Sensor Max Height 15ft 120-277V $28.99
$2899
current price $28.99Maxxima Motion Detectors 360 Degree PIR Occupancy Sensor white Hard-Wired Motion LED Compatible Sensor Max Height 15ft 120-277V
5 out of 5 stars
Ceiling Mount Sensor, Occupancy, Vacancy, Hard Wired, White, 2,000 sq ft, LED $357.98 $357.98/1
$35798
current price $357.98$357.98/1
Ceiling Mount Sensor, Occupancy, Vacancy, Hard Wired, White, 2,000 sq ft, LED
Maxxima High Bay Fixture Mount - 360 Degree PIR Occupancy Sensor, Hard Wired Indoor Motion Sensor, Automatic Commercial or Residential Lighting Solution, Max Height 30 Ft, 120-277V $26.99
$2699
current price $26.99Maxxima High Bay Fixture Mount - 360 Degree PIR Occupancy Sensor, Hard Wired Indoor Motion Sensor, Automatic Commercial or Residential Lighting Solution, Max Height 30 Ft, 120-277V
Ceiling Mount Sensor, Occupancy, Photocell, Hard Wired, White, 2,000 sq ft, LED $392.05 $392.05/1
$39205
current price $392.05$392.05/1
Ceiling Mount Sensor, Occupancy, Photocell, Hard Wired, White, 2,000 sq ft, LED
Ceiling Mount Sensor, Occupancy, Photocell, Hard Wired, White, 1,000 sq ft, LED $253.29
$25329
current price $253.29Ceiling Mount Sensor, Occupancy, Photocell, Hard Wired, White, 1,000 sq ft, LED
076-1369 Hard Drive Thermal Sensor Kit for Mini Mid 2010 A1347 $18.47
$1847
current price $18.47076-1369 Hard Drive Thermal Sensor Kit for Mini Mid 2010 A1347
2X 076-1369 Hard Drive Thermal Sensor Kit for Mini Mid 2010 A1347 $18.62
$1862
current price $18.622X 076-1369 Hard Drive Thermal Sensor Kit for Mini Mid 2010 A1347
2X 076-1369 Hard Drive Thermal Sensor Kit for Mini Mid 2010 A1347 $20.26
$2026
current price $20.262X 076-1369 Hard Drive Thermal Sensor Kit for Mini Mid 2010 A1347
TONAIN 90 dB, White Magnetic Household Sensors & Alarms $4.48
$448
current price $4.48TONAIN 90 dB, White Magnetic Household Sensors & Alarms
Other options to consider(138)
Garage Door Sensor 41A5034, Sensor Replacement with safety sensor option 2 Pieces By PULMCheerger $15.62
$1562
current price $15.62Garage Door Sensor 41A5034, Sensor Replacement with safety sensor option 2 Pieces By PULMCheerger
4.5 out of 5 stars
First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization $53.99
$5399
current price $53.99First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization
4.3 out of 5 stars
Best seller, Hyper Tough 7-Sensor Stud Finder Tool, Wood & Metal Stud Detector Wall Scanner $19.88
Best seller
$1988
current price $19.88Hyper Tough 7-Sensor Stud Finder Tool, Wood & Metal Stud Detector Wall Scanner
4.6 out of 5 stars
ADT Blu Door and Window Sensor 4-Pack, Wireless Alarm Sensors with Tamper Alerts & Convenience Mode, Plan Required. $59.99
$5999
current price $59.99ADT Blu Door and Window Sensor 4-Pack, Wireless Alarm Sensors with Tamper Alerts & Convenience Mode, Plan Required.
100+ bought since yesterday, Hyper Tough 3-Sensor Stud Finder Tool, Wood & Metal Stud Detector Wall Scanner $9.88
100+ bought since yesterday
$988
current price $9.88Hyper Tough 3-Sensor Stud Finder Tool, Wood & Metal Stud Detector Wall Scanner
4.5 out of 5 stars
TOPTES PT520A Gas Detector, Natural Gas Leak Detector for Propane, Methane, Butane and LPG, Handheld Combustible Gas Detector with 17 Inch Flexible Gooseneck, Audible and Visual Alarm From $39.99
2 options
Available in additional 2 optionsFrom$3999
TOPTES PT520A Gas Detector, Natural Gas Leak Detector for Propane, Methane, Butane and LPG, Handheld Combustible Gas Detector with 17 Inch Flexible Gooseneck, Audible and Visual Alarm
4.6 out of 5 stars
Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup From $39.97
4 options
Available in additional 4 optionsFrom$3997
Kidde Hardwired Photoelectric Smoke Detector Alarm, 10-Year Lithium Sealed Battery Backup
3.8 out of 5 stars
First Alert BRK SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup $21.87 Was $24.95
Now$2187
current price Now $21.87, Was $24.95$24.95
First Alert BRK SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup
4.7 out of 5 stars
Honeywell Vista 20P Hardwired Kit with a 6160 Keypad, One IS335 Motion Sensor, Three 7939WG Contacts, and a Wave2 Siren $265.28
$26528
current price $265.28Honeywell Vista 20P Hardwired Kit with a 6160 Keypad, One IS335 Motion Sensor, Three 7939WG Contacts, and a Wave2 Siren
4 out of 5 stars
M Buder Universal Garage Door Opener Safety Sensor Kit 41A5034 with Bracket, Replacement Infrared Sensor Beam Eyes for DC5V-6V Systems, 14 Pieces, 7.09 inches / 18 cm Length $28.86
$2886
current price $28.86M Buder Universal Garage Door Opener Safety Sensor Kit 41A5034 with Bracket, Replacement Infrared Sensor Beam Eyes for DC5V-6V Systems, 14 Pieces, 7.09 inches / 18 cm Length
3-Pack Smart Water Leak Detector 110dB Alarm 500ft Range, WiFi Home Sensors for Basement/Bathroom - App Alerts & Email Notifications, Prevent Flood Damage $23.95
$2395
current price $23.953-Pack Smart Water Leak Detector 110dB Alarm 500ft Range, WiFi Home Sensors for Basement/Bathroom - App Alerts & Email Notifications, Prevent Flood Damage
First Alert Hardwired Smoke Alarm with Battery Backup 6 PACK $88.26
$8826
current price $88.26First Alert Hardwired Smoke Alarm with Battery Backup 6 PACK
4.5 out of 5 stars
Shelly Flood Gen4 Wi-Fi, Zigbee & Matter Smart Flood Sensor with Bluetooth, Leak Detection Cable, Alexa, Google Home, Apple HomeKit $31.99
$3199
current price $31.99Shelly Flood Gen4 Wi-Fi, Zigbee & Matter Smart Flood Sensor with Bluetooth, Leak Detection Cable, Alexa, Google Home, Apple HomeKit
4.4 out of 5 stars
Best seller, Outdoor 2-Pack Dusk to Dawn Photocell Sensor with Waterproof Cap, 100-277V Auto On/Off $10.69
Best seller
$1069
current price $10.69Outdoor 2-Pack Dusk to Dawn Photocell Sensor with Waterproof Cap, 100-277V Auto On/Off
Hardt Replacement Door Sensor Mk11 Assembly- Infer3500/B 99-16883 - Genuine OEM Replacement Part $44.43
$4443
current price $44.43Hardt Replacement Door Sensor Mk11 Assembly- Infer3500/B 99-16883 - Genuine OEM Replacement Part
Best seller, X Sense Interconnected Smoke Alarm, 10 Year Battery, ETL Listed, SD19 W, 1 PACK From $22.99
Best seller
2 options
Available in additional 2 optionsFrom$2299
X Sense Interconnected Smoke Alarm, 10 Year Battery, ETL Listed, SD19 W, 1 PACK
4.5 out of 5 stars
Sensative 11010321 Strips Guard Z-Wave 800 Door/Window Sensor, with Magnet $36.99
$3699
current price $36.99Sensative 11010321 Strips Guard Z-Wave 800 Door/Window Sensor, with Magnet
Adjustable Parking Sensor by STKR - Works With All Vehicles $33.99
$3399
current price $33.99Adjustable Parking Sensor by STKR - Works With All Vehicles
4.4 out of 5 stars
LOS2500/120 Occupancy Sensor 2000W 120V Ceiling, White, Hardwired $91.99
$9199
current price $91.99LOS2500/120 Occupancy Sensor 2000W 120V Ceiling, White, Hardwired
Kidde 20SAR-W Smart Hardwired Smoke Detector with AA Battery Backup $54.97
$5497
current price $54.97Kidde 20SAR-W Smart Hardwired Smoke Detector with AA Battery Backup
BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector $18.97
$1897
current price $18.97BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector
4.7 out of 5 stars
Kidde 30CUAR-W Hardwired Interconnect Smoke and Carbon Monoxide Alarm From $74.97
From$7497
Kidde 30CUAR-W Hardwired Interconnect Smoke and Carbon Monoxide Alarm
5 out of 5 stars
Deal, First Alert Hardwired Smoke Alarm with Battery Backup 4 PACK $73.58
Deal
$7358
current price $73.58First Alert Hardwired Smoke Alarm with Battery Backup 4 PACK
4.2 out of 5 stars
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack $49.97
$4997
current price $49.97First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack
4.6 out of 5 stars